Texas Instruments Incorporated has introduced three new switch-mode standalone battery charger ICs for lithium-based battery-powered applications with a 5-V to 28-V input.

The devices provide accurate and efficient charging in a small package for mass market applications, such as industrial handhelds, mobile Internet devices (MIDs), netbooks, power tools and portable medical devices.

These devices offer a constant-frequency synchronous switching pulse-width modulation (PWM) controller with highly accurate charge current and voltage regulation, charge preconditioning, termination, adapter current regulation and charge status monitoring. The battery is charged in three phases: preconditioning, constant current and constant voltage. A programmable charge timer provides a safety backup.

Key features and benefits

Higher efficiency results in less heat dissipation than other solutions.

Greater than 99 percent charge voltage and current accuracy optimize battery life cycle.

Dynamic power management maximizes use of adapter power to power the system while charging the battery.

Availability and pricing

The bq24610 and bq24617 are available now in a 24-pin 4x4 mm2 QFN package. The bq24600 is available in a 16-pin 3.5 x 3.5 mm2 QFN package. The bq24610 is priced at 2.60 US Dollars and the bq24600 and bq24617 are priced at 2.90 US Dollars, in quantities of 1,000.

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